Velocity of a particle when acceleration based on displacement

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Homework Help Overview

The discussion revolves around a problem involving the velocity of a particle where the acceleration is dependent on displacement. Participants are exploring the relationship between speed and direction in the context of this physics problem.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to apply the chain rule for relating velocity and displacement but expresses uncertainty about determining the direction of the velocity vector. Other participants question the clarity of the problem and the specific requirements for finding the velocity.

Discussion Status

The discussion is ongoing, with participants seeking clarification on how to approach the problem of finding the direction of velocity. Some guidance has been offered regarding the use of vector equations, but there is no consensus on the method to be used.

Contextual Notes

The original poster indicates a struggle with the mathematical concepts necessary for solving the problem, particularly in relation to vector integration and higher mathematics. There is a focus on the need for both magnitude and direction in the solution.

ivanallen
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Homework Statement


[PLAIN]http://img690.imageshack.us/img690/5817/problem001.jpg

Homework Equations


Chain rule : dv/dt=dv/dr*dr/dt
Integration

The Attempt at a Solution


I can only find the speed (the magnitude of the velocity), that is
[PLAIN]http://img268.imageshack.us/img268/4996/95620213.jpg

I have no idea how to consider its direction. :frown:
Does it involve vector integration or higher mathematic knowledge?
Help me, please, I'm dying to know the answer, thank you. :!)
 
Last edited by a moderator:
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Where is the problem?
 
Problem is I can't find the direction of the velocity of this paricle, the only thing I can find is its magnitude.
In the question above, it asks for the velocity, so only magnitude is not enough.
Please show me how to find its direction. Thanks.
 
You have a vector equation, one equation for each component, x, y, z. ehild
 
Last edited:

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